by (United Kingdom)T.J.M.Schopf;by (United States)C.F.Bird; by (United Kingdom)T.G.S.Cain;by (United States)J.F.Nims; by (United Kingdom)D.M.Bishop;by (United States)J.P.Lowe; by (United Kingdom)A.J.Thomson;by (United States)C.Wheeler; by (United Kingdom)G.J.Schiffhorst;by (United States)L.P.Lim; by (United Kingdom)J.N.Bradley;by (United States)C.H.Bamford; by (United Kingdom)A.E.Schoflon;by (United States)G.E.Myers; by (United Kingdom)R.P.Houghton;by (United States)T.J.Marks; by (United Kingdom)W.M.Smyth;by (United States)J.G.Varnado; by (United Kingdom)K.J.Binns;by (United States)R.L.Gray;